:root{--bg: #ffffff;--fg: #14171f;--muted: #5b6472;--line: #e7eaef;--brand: #5b5bd6;--brand-d: #4646b8;--card: #f7f8fa;--radius: 14px;--max: 1180px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,Arial,sans-serif}img{max-width:100%;height:auto}a{color:var(--brand);text-decoration:none}a:hover{color:var(--brand-d)}.container{max-width:var(--max);margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--line);position:sticky;top:0;background:#ffffffeb;backdrop-filter:blur(8px);z-index:50}.header-inner{display:flex;align-items:center;gap:28px;height:64px}.logo{font-weight:800;font-size:22px;color:var(--fg);letter-spacing:-.5px}.logo span{color:var(--brand)}.main-nav{display:flex;gap:20px;flex-wrap:wrap}.main-nav a{color:var(--muted);font-weight:600;font-size:15px}.main-nav a:hover{color:var(--brand)}main.container{padding-top:32px;padding-bottom:56px;min-height:60vh}.site-footer{border-top:1px solid var(--line);background:var(--card);padding:28px 0;color:var(--muted);font-size:14px}.footer-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}.social{display:flex;gap:16px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}.card:hover{transform:translateY(-3px);box-shadow:0 12px 28px #14171f1a}.card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#eef0f3}.card .body{padding:16px 18px;display:flex;flex-direction:column;gap:8px}.card h3{margin:0;font-size:17px;line-height:1.35}.card h3 a{color:var(--fg)}.card h3 a:hover{color:var(--brand)}.card p{margin:0;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.badge{align-self:flex-start;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;color:var(--brand);background:#ececfb;padding:3px 9px;border-radius:999px}.article{max-width:820px;margin:0 auto}.article h1{font-size:36px;line-height:1.15;letter-spacing:-.6px;margin:0 0 10px}.article .meta{color:var(--muted);font-size:14px;margin-bottom:22px}.article .cover{width:100%;border-radius:var(--radius);margin-bottom:24px}.article .content{font-size:17px}.article .content h2{font-size:26px;margin-top:36px}.article .content h3{font-size:21px;margin-top:28px}.article .content img{border-radius:10px;margin:18px 0}.article .content a{text-decoration:underline}.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;padding-top:22px;border-top:1px solid var(--line)}.tags a{font-size:13px;background:var(--card);border:1px solid var(--line);padding:5px 12px;border-radius:999px;color:var(--muted)}.tags a:hover{color:var(--brand);border-color:var(--brand)}.related{margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}.related h2{margin:0 0 14px;font-size:23px;line-height:1.25}.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.related-item{display:flex;flex-direction:column;gap:6px;min-height:150px;padding:14px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--fg)}.related-item:hover{border-color:var(--brand);color:var(--fg)}.related-item span{font-size:11px;font-weight:700;color:var(--brand);text-transform:uppercase}.related-item strong{font-size:16px;line-height:1.35}.related-item small{color:var(--muted);font-size:13px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:18px}.breadcrumbs a{color:var(--muted)}.breadcrumbs a:hover{color:var(--brand)}.page-title{font-size:32px;letter-spacing:-.5px;margin:0 0 8px}.page-desc{color:var(--muted);max-width:760px;margin:0 0 28px}@media(max-width:640px){.header-inner{height:auto;padding:12px 0;flex-direction:column;align-items:flex-start;gap:12px}.article h1{font-size:28px}}